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Armin Raznahan

@bogglerapture.bsky.social
1.8K followers 439 following 242 posts

Child psychiatry, development, neuroimaging, and genomics. Lab Chief @ NIMH Intramural Research Program (views my own). Hopeless music nerd. Lover of cheese boards.

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Armin Raznahan @bogglerapture.bsky.social · 24/09/2026
New work out by the stellar @sharareimer.bsky.social (congrats Shara!!) on predicting neuropsychiatric outcomes in genetic high risk groups from family data (here applied to XXY and XYY syndrome - but with generalizable insights). Check out Shara’s thread below …
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ΜΑΝΟΣ ΤΡΑΧΙΑΣ™ @trahias.bsky.social · 30/06/2026
Eline Brontsema (Dutch, b.1988) "Blue / Finckensteinallee Swimming Pool," 2024 Woodcut print 67.8 x 51 cm #art #painting #artist #BlueSkyArt
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NeuroecologyLab @neuroecologylab.bsky.social · 31/05/2026
Looking forward!
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Organization for the Study of Sex Differences (OSSD) @ossdcomm.bsky.social · 30/05/2026
Undergraduate Attendee Awards were awarded to undergraduate students who are from underrepresented minority groups who are interested in research in the area of sex differences and would like to attend the meeting. Awardees from the 2026 OSSD Annual Meeting are Cierra Guinn from Michigan (1/2)
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Carl T. Bergstrom @carlbergstrom.com · 29/05/2026
Of all the harm this administration has done to US science, today's proposed changes to the way federal grants are awarded and administered is the most damaging yet. The text of the federal register document is impenetrably tedious by design, so here's an excellent summary of what it says.
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Armin Raznahan @bogglerapture.bsky.social · 28/05/2026
Do humans show sex differences in brain activation? If so, are these task-specific or general — and do they relate to sex differences in brain anatomy and behavior? We dove deep into these questions in a new paper just out in Nature Communications | tinyurl.com/3rdrb524
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ΜΑΝΟΣ ΤΡΑΧΙΑΣ™ @trahias.bsky.social · 13/05/2026
Hasui Kawase (Japanese, 1883 - 1957) "Summer Afternoon at Shimohonda-Cho Kanazawa," 1921 Full color woodblock #art #painting #artist #BlueSkyArt
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Agnès Landemard @agnesland.bsky.social · 15/04/2026
How does blood flow relate to brain activity? We discovered that it reflects two neural populations affected oppositely by arousal. Together, they explain neurovascular coupling in all brain regions and brain states! Out today in Nature: rdcu.be/fdC2A @uclbrainscience.bsky.social
The supply of blood to brain tissue is thought to depend on the overall neural activity in that tissue, and this dependence is thought to differ across brain regions and across brain states. However, studies supporting these views have measured neural activity as a bulk quantity and related it to blood supply following disparate events in different regions. Here we measure fluctuations in neuronal activity and blood volume across the mouse brain, and find that their relationship is consistent across brain states and brain regions but differs in two opposing brainwide neural populations. Functional ultrasound imaging (fUSI) revealed that whisking, a marker of arousal, is associated with brainwide fluctuations in blood volume. Simultaneous fUSI and Neuropixels recordings showed that neurons that increase activity with whisking have distinct haemodynamic response functions compared with those that decrease activity. Their summed contributions predicted blood volume across states.Brainwide Neuropixels recordings revealed that these opposing populations coexist in the entire brain. Their differing contributions to blood volume largely explain the apparent differences in blood volume fluctuations across regions. The mouse brain thus contains two neural populations with opposite relations to brain state and distinct relationships to blood supply, which together account for brainwide fluctuations in blood volume.
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Arielle Keller @ariellekeller.bsky.social · 15/04/2026
Way to go @noemirubau.bsky.social and team! This study is going to yield such important and much-needed data! #neuroskyence #PsychSciSky #neuroimaging
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Chris Baker @cibaker.bsky.social · 06/04/2026
Happening Tuesday and Wednesday. Links for the online videocast can be found here: bit.ly/4bYlbxw
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In Otter News @in-otter-news.bsky.social · 15/03/2026
BREAKING NEWS: Otter receives some really good scritches.
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Max Elliott @maxwellelliott.bsky.social · 13/03/2026
Are you interested in detecting brain changes in individuals with higher precision over shorter intervals? Check out our new paper in Nature Communications. With Randy Buckner, @jingnandu.bsky.social, and others. Link - doi.org/10.1038/s414...
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Armin Raznahan @bogglerapture.bsky.social · 09/03/2026
🚨🚨New work just out by the truly stellar Will Snyder - revealing rare and common genetic influences on complexity of human cortical folding !! 🚨🚨 👀 Will’s thread ⬇️ for deets, and to follow on @willsnyder.bsky.social Huge congrats to Will & thnx to fabulous collaborators who made this possible.
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kelly @kickinson.bsky.social · 24/02/2026
my local park is full of hundreds of snow sculptures and someone has been adding museum labels
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womensartbluesky.bsky.social @womensartbluesky.bsky.social · 21/02/2026
Louise Moillon (c. 1610–1696) French painter in the Baroque era. One of the best still life painters of her time, she was trained by her father as she was unable to attend academies as a woman- who were thought to lack the ability required for artists #WomensArt
Painting featuring a basket of plumbs on a table surface in a dark interior
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ᴅʀ. ᴍᴏᴡɪɴᴄᴋᴇʟ'ꜱ @drmowinckels.io · 09/02/2026
The ggseg ecosystem finally has a proper home! 🧠 For those who don't know, ggseg is an R package ecosystem for visualizing brain atlas data. Think ggplot2, but for brains. #rstats #neuroimaging #openscience
Dark blue hexagon, with a light blue frame. Features a brain facing the left, with the front half as a wire-frame mesh of light blue, and the back half with several polygon segments of different colours. Below is written "ggseg" in light blue.
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ΜΑΝΟΣ ΤΡΑΧΙΑΣ™ @trahias.bsky.social · 03/02/2026
Frances Featherstone (British Artist, born 1976) "A Portal to another World", 2025. Oil on Canvas, 75 × 60 cm. Private Collection. #art #painting #artist #BlueSkyArt
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Thomas Nichols @nichols.bsky.social · 03/02/2026
Statistical Machine Learning post doc positions, w/ Oxford BDI-Novartis Collaboration for AI in Medicine, working on building causal predictive models for MS using a massive clinical trials MRI dataset. Join us on this unique collaboration! my.corehr.com/pls/uoxrecru... my.corehr.com/pls/uoxrecru...
my.corehr.com
Job Details
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womensartbluesky.bsky.social @womensartbluesky.bsky.social · 31/01/2026
Georgia O’Keeffe, Lake George Reflection, 1922 #Womensart
Painting with stylised lake side landscape in reds, blues and purples, with relection of hills in still water
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Kevin Mitchell @wiringthebrain.bsky.social · 15/01/2026
Paper accepted! 😊 "Reframing the Free Will Debate: The Universe is Not Deterministic" will appear in Synthese. Final version available here: arxiv.org/abs/2503.19672 - with Henry Potter and George Ellis
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Armin Raznahan @bogglerapture.bsky.social · 11/01/2026
So, gonadal type (testes vs. ovaries) and sex chromosome complement (XY vs. XX) represent two strong candidate drivers of phenotypic sex differences in mammals. But how well can these factors explain sex differences in the brain and how much does each contribute to a given difference? …
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Armin Raznahan @bogglerapture.bsky.social · 11/01/2026
How do gonads and sex chromosomes contribute to regional sex differences in the brain? 🤔 Our new preprint summarizes >5 years of work on this question, combining structural neuroimaging and snRNAseq within a sample of >850 mice. www.biorxiv.org/content/10.6... Thread below …
biorxiv.org
Gonadal and sex chromosomal contributions to sex differences in mammalian brain organization
Sex differences in brain development may contribute to well-known sex differences in behavior and neuropsychiatric risk - making it important to comprehensively map and mechanistically annotate normat...
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Armin Raznahan @bogglerapture.bsky.social · 11/01/2026
How do gonads and sex chromosomes contribute to regional sex differences in the brain? 🤔 Our new preprint summarizes >5 years of work on this question, combining structural neuroimaging and snRNAseq within a sample of >850 mice. www.biorxiv.org/content/10.6... Thread below …
biorxiv.org
Gonadal and sex chromosomal contributions to sex differences in mammalian brain organization
Sex differences in brain development may contribute to well-known sex differences in behavior and neuropsychiatric risk - making it important to comprehensively map and mechanistically annotate normat...
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Armin Raznahan @bogglerapture.bsky.social · 04/01/2026
what's a great album that has predominantly ORANGE cover artwork?
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Armin Raznahan @bogglerapture.bsky.social · 29/11/2025
www.medrxiv.org/content/10.1...
medrxiv.org
As rates of ASD and ADHD rise, genetic contributions fall: Evidence for widening diagnostic criteria
Importance The incidence of ADHD and autism spectrum disorder (ASD) has increased markedly over recent decades, raising concerns about the emergence of new risk factors. Current literature typically a...
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Armin Raznahan @bogglerapture.bsky.social · 29/11/2025
rdcu.be/eSmAr
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Armin Raznahan @bogglerapture.bsky.social · 28/11/2025
Recorded in 1973 (up the road in Silver Spring, MD) with this plea in the liner notes … “In the interest of national security, please help us carry out our constitutional duty to overthrow the king”. Beautiful, powerful, rousing music.
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Edda Schulz @eddaschulz.bsky.social · 17/11/2025
📣 SAVE THE DATE Next X-inactivation meeting in Sapporo, Japan, 19-23 October 2026. Visit x-inactivation-meeting.org to join our mailing list. 🧬 speakers @dandergassen.bsky.social @marnieblewitt.bsky.social @heard65.bsky.social @crougeulle.bsky.social @sexchrlab.bsky.social @zhouqi1982.bsky.social
Poster advertising the 6th X-inactivation meeting from Oct 19-23 2026 in Sapporo, Japan. The organizers are Asato Kuriowa, Edda Schulz, Ikuhiro Okamoto, Rafael Galupa, Takashi Sado, Mitinori Saitou.
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Simon Fisher @profsimonfisher.bsky.social · 17/11/2025
Advances in genomics are giving exciting new perspectives on biology of speech, language & reading. My latest peer-reviewed paper is a tutorial, guiding readers from different backgrounds through the history of the field, current state-of-the-art, & where we’re heading. A taster in this thread.🧪 1/n
pubs.asha.org
Genomic Investigations of Spoken and Written Language Abilities: A Guide to Advances in Approaches, Technologies, and Discovery
Purpose: The aim of this tutorial is to show how the rise of molecular technologies and analytical methods in human genetics yields exciting new ...
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Armin Raznahan @bogglerapture.bsky.social · 18/11/2025
I wonder if it’ll generalize outside the training dataset
media.tenor.com
a mcdonald 's clown is crying with the words " my heart is mcbreaking "
ALT: a mcdonald 's clown is crying with the words " my heart is mcbreaking "
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Armin Raznahan @bogglerapture.bsky.social · 18/11/2025
And hats off to @thetransmitter.bsky.social for this fab program. Super important to celebrate and promote these awesome future leaders. Inspiring people, doing crucial work (and currently under some especially challenging circumstances)
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Armin Raznahan @bogglerapture.bsky.social · 18/11/2025
So delighted to see @valeriejsydnor.bsky.social and her other glittering peers on this list! Huge congrats to you Val. SO(^zillion) well deserved!!! 🎉🤩💪🏽 www.thetransmitter.org/early-career...
thetransmitter.org
The Transmitter’s Rising Stars of Neuroscience 2025
We recognize the outstanding achievements of 25 neuroscientists who stand to shape the field for years to come.
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Armin Raznahan @bogglerapture.bsky.social · 08/11/2025
Had forgotten the epic cavernous slam of this. Brilliant.
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Armin Raznahan @bogglerapture.bsky.social · 02/11/2025
media.tenor.com
a monkey is standing in the middle of a desert in a scene from the movie 2001 : a space odyssey .
ALT: a monkey is standing in the middle of a desert in a scene from the movie 2001 : a space odyssey .
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Tamsin Ford @tamsinford.bsky.social · 16/10/2025
This was student initiated and led and I am so proud of what they have done
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Armin Raznahan @bogglerapture.bsky.social · 11/10/2025
What a glorious album to loose yourself in. 🌊
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Alexis Brieant @abrieant.bsky.social · 10/10/2025
New lab paper in DCN! 🧠 We conducted interviews with adolescents to better understand their perceptions of neuroscience research and barriers to participation, w/qualitative data that is shaping how we design lab studies & efforts to increase representation. www.sciencedirect.com/science/arti...
sciencedirect.com
Understanding barriers to adolescent participation in developmental neuroscience research
Increasing representation of youth in developmental neuroscience research is essential to elucidating neurobiological mechanisms of cognition, behavio…
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Armin Raznahan @bogglerapture.bsky.social · 10/10/2025
media.tenor.com
prince is wearing a blue suit and a scarf around his neck and making a funny face .
ALT: prince is wearing a blue suit and a scarf around his neck and making a funny face .
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womensartbluesky.bsky.social @womensartbluesky.bsky.social · 03/10/2025
Sea and boat,1988 by Wilhelmina Barns-Graham #womensart
Artwork featuring a small silhouette of a boat on a stylised sea with large greenish waves
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Armin Raznahan @bogglerapture.bsky.social · 03/10/2025
Some news …! 🤗 So excited to get started next year, and very grateful for the opportunity. Looking forward to connecting with friends and colleagues - old and new. Watch this space for posting on fully funded positions as the new lab starts up !
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Varun Warrier @vw1234.bsky.social · 01/10/2025
This was a fantastic collaboration with lots of people including @hilarycmartin.bsky.social @jakobgrove.bsky.social, Experts by Experience, and several others who I can't seem to find on this app. Article: www.nature.com/articles/s41...
nature.com
Polygenic and developmental profiles of autism differ by age at diagnosis - Nature
A study of several longitudinal birth cohorts and cross-sectional cohorts finds only moderate overlap in genetic variants between autism that is diagnosed earlier and that diagnosed later, so they may represent aetiologically different conditions.
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Emmanuel A. Stamatakis @estamatakis.bsky.social · 25/09/2025
We are delighted to announce the launch of a new Master's Programme in Brain Health and Disease within the Department of Clinical Neurosciences at the University of Cambridge. Applications are now open! @camneurodept.bsky.social www.clinical-neuroscience.cam.ac.uk/education/ta...
clinical-neuroscience.cam.ac.uk
Taught MPhil in Brain Health and Disease | Clinical Neurosciences
Our one-year Master’s programme in Brain Health and Disease: Clinical Neurosciences offers an exceptional opportunity for students to engage with the forefront of clinical neuroscience through a dynam...
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Armin Raznahan @bogglerapture.bsky.social · 24/09/2025
Check out this great thread on a fresh preprint by @hyolee.bsky.social ! 🤩 Hyo led a new study where we & our fab collaborators take a closer look at sex differences in human cortical volume …
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Armin Raznahan @bogglerapture.bsky.social · 05/09/2025
This is an absolutely miraculous meeting! Can’t recommend it highly enough - sizzling science and great peeps … all in middle of paradise.
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Armin Raznahan @bogglerapture.bsky.social · 30/08/2025
Adore this whole album, but check out the bowed double bass solo and Trane/Bags trading bars in this, its opening track. Utterly astounding music. The evolving variations as they trade bars - an improvised masterpiece unfolding in real time … youtu.be/jxK7uj2E7fU?...
youtu.be
Bags & Trane - Milt Jackson & John Coltrane
YouTube video by Madd106Hatter
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Armin Raznahan @bogglerapture.bsky.social · 29/08/2025
Tight, hard, and silky smooth all at once. What pop masters of the perfectly placed they were … open.spotify.com/track/1MXwrI...
open.spotify.com
Nothing At All
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Armin Raznahan @bogglerapture.bsky.social · 24/08/2025
I have but now haply lighted upon this album, and I would commend it unto thee with all earnestness, that thou give it a hearing … (Get yer baroque on) open.spotify.com/album/3n76cQ...
open.spotify.com
Bach: Suites (Arr. for Lute)
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Armin Raznahan @bogglerapture.bsky.social · 23/08/2025
Challenging Behavior Domains in Individuals With Neurodevelopmental Genetic Syndromes: The Role of Psychological Features - Ferguson - American Journal of Medical Genetics Part B: Neuropsychiatric Genetics - Wiley Online Library onlinelibrary.wiley.com/doi/epdf/10....
onlinelibrary.wiley.com
Challenging Behavior Domains in Individuals With Neurodevelopmental Genetic Syndromes: The Role of Psychological Features
Problem behaviors (PB) commonly co-occur in individuals with neurodevelopmental genetic syndromes (NGDs) and increase the risk of injury to oneself and others. Despite the prevalence and clinical imp...
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Armin Raznahan @bogglerapture.bsky.social · 23/08/2025
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